Cells from grandma help keep fetus safe
Immune system attack thwarted by protective T cells
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/07/ti_maternal_free.jpg?fit=860%2C460&ssl=1)
UNDER GRANDMA’S WING Cells from the maternal grandmother manipulate a mother’s immune system during pregnancy to protect grandchildren that share grandmother’s genes, new research shows.
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